lively -- (full of life and energy; "a lively discussion"; "lively and attractive parents"; "a lively party")
lively, racy -- (full of zest or vigor; "a racy literary style")
alert, brisk, lively, merry, rattling, snappy, spanking, zippy -- (quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze")